Software Engineer ll/Senior Software Engineer - Full Stack

About Sequel
Sequel, headquartered in Manchester, New Hampshire, is a company developing the next generation of transformative drug-delivery advancements starting with diabetes. Sequel’s approach is to look at diabetes management holistically to advance systems that make living with diabetes simpler and easier for all.
 Sequel’s flagship product, the twiist Automated Insulin Delivery (AID) System, launched in July 2025 for people with type 1 diabetes providing them with personalized diabetes management.  

Job Overview 

Sequel Med Tech is looking to fill multiple Full-Stack Software Engineer roles over the next few months (start dates in May, July, and September) as we scale our software product team to support a growing portfolio of digital health products and systems. Our software engineers are digital health utility players, supporting front-end and back-end development for new digital products, partnering with the platform team to deploy cloud infrastructure, and providing a voice of the possible to business partners working to define new capabilities. The ideal candidate for this role will be T-shaped engineer, with depth in one or more disciplines (e.g. front-end, back-end, security, data, mobile) while having the breadth to be able to step in where needed or to collaborate effectively with other team members to avoid technical silos. They will be hands-on and excited to build great patient-, caregiver-, and clinician-facing products to support a rapidly growing medical devices startup. If you value shared ownership and accountability, individual and team empowerment, and a culture of collaboration and continuous improvement, then this is the job for you.  

Job Responsibilities and Essential Duties 

Engineer II: 

• Under the guidance of engineering leadership, develop and maintain high-quality software solutions for Sequel Med Tech's digital products. 
• Given guidance from the team on business and technical requirements, deliver solutions that meet both business and technical needs. 
• In collaboration with other engineers, ensure that software is designed and delivered according to best practices and standards. 
• Adhere to Sequel Software Development Practices to ensure that software is developed and maintained in compliance with regulatory requirements such as HIPAA, GxP, security requirements, GDPR, etc. 
• Stay up-to-date with the latest technology trends and best practices. 
• Collaborate with other team members to ensure that software is delivered on time and meets quality standards. 
• With support from other engineers, develop automated tests to ensure that software is of high quality and meets all requirements. 

Senior Engineer: 

• Develop and maintain high-quality software solutions for Sequel Med Tech's digital products. 
• Collaborate with the product team to understand business requirements, translate them into technical requirements, and deliver solutions that meet both business and technical needs. 
• Ensure that software is designed and delivered according to best practices and standards. 
• Adhere to Sequel Software Development Practices to ensure that software is developed and maintained in compliance with regulatory requirements such as HIPAA, GxP, security requirements, GDPR, etc. 
• Stay up-to-date with the latest technology trends and best practices. 
• Collaborate with other team members to ensure that software is delivered on time and meets quality standards. 
• Develop and maintain automated tests to ensure that software is of high quality and meets all requirements. 

Staff Engineer: 

• Develop and maintain high-quality and scalable software solutions for Sequel Med Tech's digital products. 
• Collaborate with the product team to understand business requirements, translate them into technical requirements, and deliver solutions that meet both business and technical needs. 
• Work closely with other developers to ensure that software is designed and delivered according to best practices and standards. 
• Build integrations with external systems using APIs, authentication flows, and data transfer strategies. 
• Adhere to Sequel Software Development Practices to ensure that software is developed and maintained in compliance with regulatory requirements such as HIPAA, GxP, security requirements, GDPR, etc. 
• Stay up-to-date with the latest technology trends and best practices, and make recommendations for improvements to software development processes and tools. 
• Collaborate with other team members to ensure that software is delivered on time, within budget, and meets quality standards. 
• Develop and maintain automated tests to ensure that software is of high quality and meets all requirements. 

Minimum Requirements 

For all levels:  

• Bachelor's degree in Computer Science, Software Engineering, or a related field, or commensurate experience. 

Engineer II: 

• 2-5 years of related experience. 

Senior Engineer: 

• 5+ years of related experience. 

Staff Engineer: 

• 6+ years of related experience, including at least 1 year in a healthcare or other regulated industry. 

Required Knowledge, Skills and Abilities 

Engineer II: 

• Demonstrated ability to learn new technology stacks. 
• Understanding of the concept of test automation and ability to learn tools and approaches. 
• Exposure to common development tools like Git, Jira, etc. 
• Ability to work collaboratively with other software engineers. 
• Excellent problem-solving, communication, and teamwork skills. 
• Passion for building great patient-, caregiver-, and clinician-facing products to support a rapidly growing medical device startup. 

Senior Engineer: 

• Experience with or demonstrated ability to quickly learn Node.js and React.js. 
• Familiarity with test automation approaches and tools. 
• Experience with common development tools like Git, Jira, etc. 
• Ability to work collaboratively and across disciplines with other developers. 
• Excellent problem-solving, communication, and teamwork skills. 
• Passion for building great patient-, caregiver-, and clinician-facing products to support a rapidly growing medical device startup. 

Staff Engineer: 

• Breadth of technology stacks, with particular experience with or demonstrated ability to quickly learn Node.js and React.js. 
• Familiarity with a variety of test automation approaches and tools. 
• Experience with common development tools like Git and Jira, and the ability to determine the right set of tools for the job. 
• Ability to work collaboratively and across disciplines with other developers to design and deliver software to solve patient, clinical, and business needs. 
• Experience working within a regulated industry – healthcare experience a plus. 
• Excellent problem-solving, communication, and teamwork skills. 
• Passion for building great patient-, caregiver-, and clinician-facing products to support a rapidly growing medical device startup. 

Sequel Med Tech provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. 

At Sequel, we believe that when you thrive, we thrive. That’s why we’ve designed a benefits package that’s as thoughtful as it is generous. From day one, you’re automatically enrolled in our 401k plan—no waiting, no worries—with a 6% company match and 100% immediate vesting. We prioritize your well-being, especially for our employees and their families living with diabetes, with capped out-of-pocket insulin costs and GLP-1 coverage across all plans. With multiple medical plans through Aetna, including a 100% company-paid high deductible plan paired with employer HSA contributions, you can select what suits your needs. Additional benefits include vision and dental plans, employer-paid short-term disability, and voluntary options like accident and pet insurance.  

Need time to relax and recharge? You’ll enjoy flexible PTO and generous paid holidays, all while being part of a culture that values hard work, fun, and support. We don’t just offer jobs—we offer careers that build futures. Join us, and let’s grow together!  

Environmental/Safety/Physical Work Conditions 

• Ensures environmental consciousness and safe practices are exhibited in decisions 
• Use of computer and telephone equipment and other related office accessories/devices to complete assignments 
• May work extended hours during peak business cycles 
• Physical requirements such as lifting specific weights 
• Some travelling is expected